US5116650A - Dioxole/tfe copolymer composites - Google Patents
Dioxole/tfe copolymer composites Download PDFInfo
- Publication number
- US5116650A US5116650A US07/621,661 US62166190A US5116650A US 5116650 A US5116650 A US 5116650A US 62166190 A US62166190 A US 62166190A US 5116650 A US5116650 A US 5116650A
- Authority
- US
- United States
- Prior art keywords
- sample
- solution
- wet
- coating
- test
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 229920001577 copolymer Polymers 0.000 title claims abstract description 10
- 239000002131 composite material Substances 0.000 title description 2
- XKTYXVDYIKIYJP-UHFFFAOYSA-N 3h-dioxole Chemical compound C1OOC=C1 XKTYXVDYIKIYJP-UHFFFAOYSA-N 0.000 title 1
- 239000000463 material Substances 0.000 claims abstract description 54
- YSYRISKCBOPJRG-UHFFFAOYSA-N 4,5-difluoro-2,2-bis(trifluoromethyl)-1,3-dioxole Chemical compound FC1=C(F)OC(C(F)(F)F)(C(F)(F)F)O1 YSYRISKCBOPJRG-UHFFFAOYSA-N 0.000 claims abstract description 7
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 17
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 17
- 239000004744 fabric Substances 0.000 claims description 14
- 239000011152 fibreglass Substances 0.000 claims 1
- 239000004745 nonwoven fabric Substances 0.000 claims 1
- 239000002759 woven fabric Substances 0.000 claims 1
- 239000011148 porous material Substances 0.000 abstract description 18
- 239000000523 sample Substances 0.000 description 74
- 239000000243 solution Substances 0.000 description 45
- 238000000576 coating method Methods 0.000 description 32
- 239000011248 coating agent Substances 0.000 description 31
- 239000012528 membrane Substances 0.000 description 31
- 238000012360 testing method Methods 0.000 description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 27
- 229920006362 Teflon® Polymers 0.000 description 26
- 239000004809 Teflon Substances 0.000 description 24
- 239000007789 gas Substances 0.000 description 20
- 239000003921 oil Substances 0.000 description 19
- 238000009736 wetting Methods 0.000 description 14
- 239000004677 Nylon Substances 0.000 description 13
- 229920001778 nylon Polymers 0.000 description 13
- 239000012530 fluid Substances 0.000 description 11
- 230000002209 hydrophobic effect Effects 0.000 description 10
- 238000005259 measurement Methods 0.000 description 10
- 230000000007 visual effect Effects 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- -1 polytetrafluoroethylene Polymers 0.000 description 9
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 6
- FYJQJMIEZVMYSD-UHFFFAOYSA-N perfluoro-2-butyltetrahydrofuran Chemical group FC(F)(F)C(F)(F)C(F)(F)C(F)(F)C1(F)OC(F)(F)C(F)(F)C1(F)F FYJQJMIEZVMYSD-UHFFFAOYSA-N 0.000 description 6
- 230000005855 radiation Effects 0.000 description 6
- 239000002904 solvent Substances 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 239000002480 mineral oil Substances 0.000 description 5
- 235000010446 mineral oil Nutrition 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 239000013068 control sample Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000010705 motor oil Substances 0.000 description 4
- 229920000642 polymer Polymers 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000003517 fume Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- 239000004800 polyvinyl chloride Substances 0.000 description 3
- 238000003908 quality control method Methods 0.000 description 3
- 230000007928 solubilization Effects 0.000 description 3
- 238000005063 solubilization Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- ABADUMLIAZCWJD-UHFFFAOYSA-N 1,3-dioxole Chemical group C1OC=CO1 ABADUMLIAZCWJD-UHFFFAOYSA-N 0.000 description 2
- 229920002313 fluoropolymer Polymers 0.000 description 2
- 239000004811 fluoropolymer Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 230000002706 hydrostatic effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 229920000098 polyolefin Polymers 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- 239000011800 void material Substances 0.000 description 2
- 239000002033 PVDF binder Substances 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004614 Process Aid Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 229920000295 expanded polytetrafluoroethylene Polymers 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229940097789 heavy mineral oil Drugs 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000000077 insect repellent Substances 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 239000002960 lipid emulsion Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 230000004584 weight gain Effects 0.000 description 1
- 235000019786 weight gain Nutrition 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
- B01D67/0081—After-treatment of organic or inorganic membranes
- B01D67/0088—Physical treatment with compounds, e.g. swelling, coating or impregnation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
- B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/44—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D71/26-B01D71/42
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/30—Polyalkenyl halides
- B01D71/32—Polyalkenyl halides containing fluorine atoms
- B01D71/36—Polytetrafluoroethene
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1303—Paper containing [e.g., paperboard, cardboard, fiberboard, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/131—Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.]
- Y10T428/1314—Contains fabric, fiber particle, or filament made of glass, ceramic, or sintered, fused, fired, or calcined metal oxide, or metal carbide or other inorganic compound [e.g., fiber glass, mineral fiber, sand, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/131—Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.]
- Y10T428/1317—Multilayer [continuous layer]
- Y10T428/1321—Polymer or resin containing [i.e., natural or synthetic]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/1362—Textile, fabric, cloth, or pile containing [e.g., web, net, woven, knitted, mesh, nonwoven, matted, etc.]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/1376—Foam or porous material containing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
- Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249955—Void-containing component partially impregnated with adjacent component
- Y10T428/249958—Void-containing component is synthetic resin or natural rubbers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249955—Void-containing component partially impregnated with adjacent component
- Y10T428/249959—Void-containing component is wood or paper
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249978—Voids specified as micro
- Y10T428/249979—Specified thickness of void-containing component [absolute or relative] or numerical cell dimension
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249987—With nonvoid component of specified composition
- Y10T428/249991—Synthetic resin or natural rubbers
- Y10T428/249992—Linear or thermoplastic
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers
- Y10T428/31544—Addition polymer is perhalogenated
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2164—Coating or impregnation specified as water repellent
- Y10T442/2172—Also specified as oil repellent
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
- Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
- Y10T442/2164—Coating or impregnation specified as water repellent
- Y10T442/2189—Fluorocarbon containing
Abstract
Description
______________________________________ Untreated Treated Sample Sample (Control) ______________________________________ Sample A .490% wt/wt solution Gurley Number (seconds) 16.5 ± .4 15.8 ± 1.8 Contact Angle (°) H.sub.2 O (distilled) 154.1, 152.8* 128.1 Oil (mineral oil) 121.7, 118.8* 72.2 ± 2.0 Sample B .490% wt/wt solution Gurley Number (seconds) 363 ± 10 342 ± 3 Contact Angle (°) H.sub.2 O (distilled) 120.1, 126.2* 154.2 Oil (mineral oil) 97.3, 71.1* 52.2 ± 3.5 Sample C .493% wt/wt solution Visual Oil Wetting No wet-out Wet-out after Motor Oil (10w/30) after 45 min. 30 min. or less Transmission Oil No wet-out Wet-out after (Dexron II) after 45 min. 30 min. or less ______________________________________ *One measurement each face
______________________________________ Untreated Sample Screen Treated Screen (Control) ______________________________________ Sample D .490% wt/wt solution Contact Angle (°) H.sub.2 O (distilled) 135.2, 135.7* 0 Oil (mineral oil) 121.1, 122.2* 0 ______________________________________ *One measurement each face
______________________________________ Untreated Treated Sample Sample (Control) ______________________________________ Sample E .490% wt/wt solution Contact Angle (°) H.sub.2 O (distilled) 139.5, 147.7* 0 Oil (mineral oil) 94.2, 95.7* 0 Sample F .493% wt/wt solution Water Entry Pressure (psi) 0.8 ± 0.05 0 psi Non-Gamma irradiated Sample G 0.493% wt/wt solution Water Entry Pressure (psi) 0.9 ± .1 not performed Gamma irradiated 5.0 Mrad ______________________________________
______________________________________ Untreated Treated Sample Sample (Control) ______________________________________ Sample H .490% wt/wt solution Contact Angle (°) H.sub.2 O (distilled) 145.5, 135.2* 0 Oil (mineral oil) 107.1, 91.1* 0 Synthetic Perspiration Test No leak Leak Weighted Plate Method Sample I .493% wt/wt solution Water Entry Pressure (Psi) 49 ± 3 0 Non-Gamma irradiated Sample J .493% wt/wt solution Water Entry Pressure (Psi) 24 ± 1 Not performed Gamma irradiated 5.0 Mrad Sample K .493% wt/wt solution Synthetic Perspiration Test No leak Leak Evaporation Method ______________________________________ *One measurement each face
______________________________________ Untreated Treated Sample Sample (Control) ______________________________________ Sample L .48% wt/wt solution Percent weight add-on 2.45 Not applicable Gurley Number (seconds) 6.7 6.7 ± .4 Visual Wetting with Power Steering Fluid Membrane side No wet-out after Wet-out within 30 min. 30 min. Backing side No wet-out after Wet-out within 30 min. 30 min. Sample M .48% wt/wt solution Percent weight add-on 2.69 Not applicable Gurley Number (seconds) 7.5 6.7 ± .4 Visual Wetting with Transmission Fluid (Dexron II) Membrane side No wet-out after Wet-out within 30 min. 30 min. Backing side No wet-out after Wet-out within 30 min. 30 min. Sample N .48% wt/wt solution Percent weight add-on 2.59 Not applicable Gurley Number (seconds) 6.7 6.7 ± .4 Visual Wetting with Engine Oil (10w/30) Membrane side No wet-out after Wet-out within 30 min. 30 min. Backing side No wet-out after Wet-out within 30 min. 30 min. Sample O .48% wt/wt solution Percent weight add-on 2.27 Not applicable Gurley Number (seconds) 6.6 6.7 ± .4 Visual Wetting with Brake Fluid Membrane side No wet-out after Wet-out within 30 min. 30 min. Backing side No wet-out Wet-out within 30 min. 30 min. ______________________________________
______________________________________ Untreated Treated Sample Sample (Control) ______________________________________ Sample Z .507% wt/wt solution Percent weight add-on 1.25 Not applicable Gurley Number (seconds) .25 ± .01 .25 ± .02 Visual Oil Wetting No wet-out after Wet-out Motor Oil (10w/30) 1 hour instantaneously Transmission Oil No wet-out after Wet-out (Dexron II) 1 hour instantaneously ______________________________________
Claims (5)
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/621,661 US5116650A (en) | 1990-12-03 | 1990-12-03 | Dioxole/tfe copolymer composites |
CA002093518A CA2093518C (en) | 1990-12-03 | 1991-11-19 | Dioxole/tfe copolymer composites |
EP92900432A EP0561875B1 (en) | 1990-12-03 | 1991-11-19 | Dioxole/tfe copolymer composites |
PCT/US1991/008629 WO1992009353A1 (en) | 1990-12-03 | 1991-11-19 | Dioxole/tfe copolymer composites |
DE69107861T DE69107861T2 (en) | 1990-12-03 | 1991-11-19 | DIOXOL / TETRAFLUORETHYLENE COPOLYMER MATERIALS. |
AU90732/91A AU643860B2 (en) | 1990-12-03 | 1991-11-19 | Dioxole/TFE copolymer composites |
JP50196792A JP3390004B2 (en) | 1990-12-03 | 1991-11-19 | Dioxol / TFE copolymer composition |
CN91112782.8A CN1030283C (en) | 1990-12-03 | 1991-12-02 | Dloxole/TFE copolymer composites |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/621,661 US5116650A (en) | 1990-12-03 | 1990-12-03 | Dioxole/tfe copolymer composites |
Publications (1)
Publication Number | Publication Date |
---|---|
US5116650A true US5116650A (en) | 1992-05-26 |
Family
ID=24491091
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US07/621,661 Expired - Lifetime US5116650A (en) | 1990-12-03 | 1990-12-03 | Dioxole/tfe copolymer composites |
Country Status (8)
Country | Link |
---|---|
US (1) | US5116650A (en) |
EP (1) | EP0561875B1 (en) |
JP (1) | JP3390004B2 (en) |
CN (1) | CN1030283C (en) |
AU (1) | AU643860B2 (en) |
CA (1) | CA2093518C (en) |
DE (1) | DE69107861T2 (en) |
WO (1) | WO1992009353A1 (en) |
Cited By (66)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5462586A (en) * | 1993-09-08 | 1995-10-31 | Japan Gore-Tex, Inc. | Oil-and water repellent gas-permeable filter |
US5506047A (en) * | 1991-10-23 | 1996-04-09 | W. L. Gore & Associates, Inc. | Electromagnetic interfernce shielding filter |
WO1997002994A1 (en) * | 1995-07-11 | 1997-01-30 | W.L. Gore & Associates, Inc. | Venting system for high-viscosity-liquid containers |
US5690949A (en) * | 1991-10-18 | 1997-11-25 | Minnesota Mining And Manufacturing Company | Microporous membrane material for preventing transmission of viral pathogens |
US5738111A (en) * | 1991-10-18 | 1998-04-14 | Minnesota Mining And Manufacturing Company | Method for preventing transmission of viral pathogens |
WO1998017362A1 (en) * | 1996-10-24 | 1998-04-30 | Compact Membrane Systems, Incorporated | Method of gasifying or degasifying a liquid |
US5786058A (en) * | 1995-04-03 | 1998-07-28 | Minnesota Mining & Mfg | Thermally bonded viral barrier composite |
US5899238A (en) * | 1995-08-08 | 1999-05-04 | International Business Machines Corporation | Polyfluoroorgano composites and method for making |
US5914154A (en) * | 1997-05-30 | 1999-06-22 | Compact Membrane Systems, Inc. | Non-porous gas permeable membrane |
US5960777A (en) * | 1998-02-20 | 1999-10-05 | Compact Membrane Systems, Inc. | Combustion engine air supply system |
US5981614A (en) * | 1996-09-13 | 1999-11-09 | Adiletta; Joseph G. | Hydrophobic-oleophobic fluoropolymer compositions |
US5989698A (en) * | 1997-02-10 | 1999-11-23 | 3M Innovative Properties Company | Coated porous materials |
US6029447A (en) * | 1995-02-21 | 2000-02-29 | Stojic; Steven M. | Spring brake actuator with filtered vent openings |
US6036735A (en) * | 1998-03-17 | 2000-03-14 | Jps Converter And Industrial Fabrics Corporation | Finish for glass fiber fabric |
US6074738A (en) * | 1996-06-25 | 2000-06-13 | Von Fragstein; Rainer | Flexible water and oil resistant composites |
WO2000061267A1 (en) * | 1999-04-14 | 2000-10-19 | Pall Corporation | Porous membrane |
WO2000072941A1 (en) * | 1999-06-01 | 2000-12-07 | Usf Filtration And Separations Group Inc. | Oleophobic filter materials for filter venting applications |
US6196708B1 (en) * | 1998-05-14 | 2001-03-06 | Donaldson Company, Inc. | Oleophobic laminated articles, assemblies of use, and methods |
US6221247B1 (en) * | 1999-06-03 | 2001-04-24 | Cms Technology Holdings, Inc. | Dioxole coated membrane module for ultrafiltration or microfiltration of aqueous suspensions |
US6306989B1 (en) * | 1999-09-30 | 2001-10-23 | E. I. Du Pont De Nemours And Company | Situ fluoropolymer polymerization into porous substrates |
US6378414B1 (en) | 1999-06-28 | 2002-04-30 | Tse Brakes, Inc. | Removable filter cap for spring brake actuator |
US6389954B1 (en) | 1999-11-19 | 2002-05-21 | Tse Brakes, Inc. | Removable filter plug for spring brake actuator |
EP1277504A2 (en) * | 2001-07-16 | 2003-01-22 | Systec Inc. | Film degassing system |
US6512834B1 (en) | 1999-07-07 | 2003-01-28 | Gore Enterprise Holdings, Inc. | Acoustic protective cover assembly |
US6540813B2 (en) | 2000-06-13 | 2003-04-01 | Praxair Technology, Inc. | Method of preparing composite gas separation membranes from perfluoropolymers |
US6558743B1 (en) | 1998-10-27 | 2003-05-06 | E. I. Du Pont De Nemours And Company | In situ fluoropolymer polymerization into porous substrates |
US6579342B2 (en) | 2001-02-07 | 2003-06-17 | Pall Corporation | Oleophobic membrane materials by oligomer polymerization for filter venting applications |
US20030176516A1 (en) * | 2002-03-15 | 2003-09-18 | Greene, Tweed Of Delaware, Inc. | Cellular perfluoroelastomeric compositions, sealing members, methods of making the same and cellular materials for medical applications |
US6709493B2 (en) | 2001-03-26 | 2004-03-23 | Gore Enterprise Holdings, Inc. | Device for reducing the presence of moisture within an enclosure containing a heat source |
US20040145073A1 (en) * | 2002-04-12 | 2004-07-29 | I-Fan Wang | Hydrophobic membrane materials for filter venting applications |
US6770202B1 (en) | 1999-04-14 | 2004-08-03 | Pall Corporation | Porous membrane |
US6849185B1 (en) | 1999-05-14 | 2005-02-01 | Pall Corp | Charged membrane |
US20050077102A1 (en) * | 2003-10-14 | 2005-04-14 | Banter Chad A. | Protective acoustic cover assembly |
US20050120882A1 (en) * | 2003-11-05 | 2005-06-09 | Yuri Gerner | Axial transfer line degassing |
US20050131527A1 (en) * | 2003-12-12 | 2005-06-16 | Pathak Chandrashekhar P. | Implantable medical devices with fluorinated polymer coatings, and methods of coating thereof |
US20050173266A1 (en) * | 2002-08-09 | 2005-08-11 | Vivek Agarwal | High temperature oleophobic materials |
US20050184006A1 (en) * | 2004-02-25 | 2005-08-25 | Zidu Ma | Method for producing a non-porous membrane |
US20060014010A1 (en) * | 2002-09-20 | 2006-01-19 | Bha Technologies, Inc. | Composite membrane having oleophobic properties |
US20060023038A1 (en) * | 2004-07-30 | 2006-02-02 | Seu Preston D | Air-driven delivery assembly |
US20070095204A1 (en) * | 2003-11-05 | 2007-05-03 | Yuri Gerner | Axial transfer line degassing |
US20080099400A1 (en) * | 2006-10-27 | 2008-05-01 | Cms Technologies Holdings Inc. | Removal of Water and Methanol from Fluids |
US20080257155A1 (en) * | 2007-04-23 | 2008-10-23 | Bacino John E | Porous Composite Article |
US20080257153A1 (en) * | 2007-04-23 | 2008-10-23 | Harp Gary P | Patterned Porous Venting Materials |
US20090268475A1 (en) * | 2008-04-24 | 2009-10-29 | Earl Ball | Ventilation system for lamp enclosures |
US7771818B2 (en) | 2002-09-20 | 2010-08-10 | Bha Group, Inc. | Treatment of porous article |
US20100236410A1 (en) * | 2009-03-23 | 2010-09-23 | General Electric Company | Layered filtration membrane and methods of making same |
US20100270102A1 (en) * | 2009-04-22 | 2010-10-28 | Chad Banter | Splash Proof Acoustically Resistive Color Assembly |
US20100272941A1 (en) * | 2007-11-15 | 2010-10-28 | Entek Membranes Llc | Durable water- and oil- resistant, breathable microporous membrane |
US20110039468A1 (en) * | 2009-08-12 | 2011-02-17 | Baldwin Jr Alfred Frank | Protective apparel having breathable film layer |
WO2011146344A1 (en) | 2010-05-17 | 2011-11-24 | Gore Enterprise Holdings, Inc. | Improved ear fitting |
US8075669B2 (en) | 2007-04-23 | 2011-12-13 | Gore Enterprise Holdings, Inc. | Composite material |
US20120034118A1 (en) * | 2009-03-06 | 2012-02-09 | Haruo Nomi | Fluorinated Elastic Tube |
WO2012033804A1 (en) | 2010-09-10 | 2012-03-15 | Gore Enterprise Holdings, Inc. | Porous article with fused thermoplastic particles |
US20130022648A1 (en) * | 2009-11-25 | 2013-01-24 | Healionics Corporation | Granules of porous biocompatible materials |
EP2679515A1 (en) | 2008-12-31 | 2014-01-01 | W.L. Gore & Associates GmbH | Venting device |
US8939252B2 (en) | 2012-11-11 | 2015-01-27 | David Sanborn | Protective material for acoustic transmission |
US8968063B2 (en) | 2010-05-13 | 2015-03-03 | W. L. Gore & Associates, Inc. | Vent installation method |
US9044712B2 (en) | 2011-09-12 | 2015-06-02 | Idex Health & Science, Llc | Supersaturated fluid degassing |
US20150174517A1 (en) * | 2010-06-16 | 2015-06-25 | Nitto Denko Corporation | Water-proof air-permeable filter and use of the same |
US20150203371A1 (en) * | 2012-10-03 | 2015-07-23 | Eni Spa | Liquid separation device |
WO2017176989A1 (en) | 2016-04-06 | 2017-10-12 | W. L. Gore & Associates, Inc. | Pressure equalizing construction for nonporous acoustic membrane |
US9855530B2 (en) | 2010-06-16 | 2018-01-02 | Nitto Denko Corporation | Water-proof air-permeable filter and use of the same |
WO2018020987A1 (en) | 2016-07-27 | 2018-02-01 | W. L. Gore & Associates, Co., Ltd. | Waterproof sound-transmissive cover, waterproof sound-transmissive cover member and acoustic device |
DE112016007219T5 (en) | 2016-09-14 | 2019-06-06 | W.L. Gore & Associates (Shenzhen) Co., Ltd. | Arrangement for protecting an acoustic device |
US20190365045A1 (en) * | 2017-02-23 | 2019-12-05 | W.L. Gore & Associates Gmbh | Layered product with functional membrane, footwear comprising such layered product, and manufacturing method |
US10908117B2 (en) | 2018-01-22 | 2021-02-02 | InSyte Systems, Inc. | Low impedance sensor for low density materials |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2118428A1 (en) * | 1993-10-20 | 1995-04-21 | Ian C. Roman | Treatment of gas separation membranes with inert solvent |
EP0649676A1 (en) * | 1993-10-20 | 1995-04-26 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | Fluoropolymer posttreatment of gas separation membranes |
WO1998035739A1 (en) * | 1997-02-14 | 1998-08-20 | Raychem Corporation | Method for extracting gases dissolved in a liquid |
DE10053681B4 (en) * | 2000-10-28 | 2004-08-26 | W.L. Gore & Associates Gmbh | Housing with at least one EMI shielding plastic body or ventilation element and method for producing such a plastic body |
JP2003336874A (en) | 2002-05-15 | 2003-11-28 | Nitto Denko Corp | Permeable member and permeable casing using the same |
CN100334120C (en) * | 2002-07-12 | 2007-08-29 | 东华大学 | Fluororesin containing heterocycle structure and its prepn. and use |
US8851294B2 (en) | 2005-05-25 | 2014-10-07 | W. L. Gore & Associates, Inc. | Aqueous delivery system for low surface energy structures |
JP6013852B2 (en) * | 2012-09-27 | 2016-10-25 | 株式会社ディスコ | Porous material clogging inspection method and porous material clogging inspection device |
KR101793806B1 (en) | 2013-03-15 | 2017-11-03 | 더블유.엘. 고어 앤드 어소시에이트스, 인코포레이티드 | Aqueous delivery system for low surface energy structures |
US10843133B2 (en) * | 2018-07-24 | 2020-11-24 | Kamalesh Sirkar | Separation of organic solvent mixtures |
CN110240682B (en) * | 2019-05-29 | 2021-11-09 | 浙江大学 | Preparation method of block copolymer containing perfluoro-2, 2-dimethyl-1, 3-dioxole |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4754009A (en) * | 1981-08-20 | 1988-06-28 | E. I. Du Pont De Nemours And Company | Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4908410A (en) * | 1989-01-27 | 1990-03-13 | E. I. Du Pont De Nemours And Company | Modified polytetrafluoroethylene fine powder and preparation thereof |
US5051114B2 (en) * | 1989-06-15 | 1996-01-16 | Du Pont Canada | Perfluorodioxole membranes |
-
1990
- 1990-12-03 US US07/621,661 patent/US5116650A/en not_active Expired - Lifetime
-
1991
- 1991-11-19 JP JP50196792A patent/JP3390004B2/en not_active Expired - Lifetime
- 1991-11-19 CA CA002093518A patent/CA2093518C/en not_active Expired - Lifetime
- 1991-11-19 WO PCT/US1991/008629 patent/WO1992009353A1/en active IP Right Grant
- 1991-11-19 EP EP92900432A patent/EP0561875B1/en not_active Expired - Lifetime
- 1991-11-19 AU AU90732/91A patent/AU643860B2/en not_active Expired
- 1991-11-19 DE DE69107861T patent/DE69107861T2/en not_active Expired - Lifetime
- 1991-12-02 CN CN91112782.8A patent/CN1030283C/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4754009A (en) * | 1981-08-20 | 1988-06-28 | E. I. Du Pont De Nemours And Company | Amorphous copolymers of perfluoro-2,2-dimethyl-1,3-dioxole |
Cited By (111)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5690949A (en) * | 1991-10-18 | 1997-11-25 | Minnesota Mining And Manufacturing Company | Microporous membrane material for preventing transmission of viral pathogens |
US5738111A (en) * | 1991-10-18 | 1998-04-14 | Minnesota Mining And Manufacturing Company | Method for preventing transmission of viral pathogens |
US5981038A (en) * | 1991-10-18 | 1999-11-09 | 3M Innovative Properties Company Minnesota Mining And Manufacturing Co. | Laminate preventing transmissions of viral pathogens |
US5935370A (en) * | 1991-10-18 | 1999-08-10 | #M Innovative Properties Company Minnesota Mining And Manufacturing Co. | Method for laminating a viral barrier microporous membrane to a nonwoven web to prevent transmission of viral pathogens |
US5506047A (en) * | 1991-10-23 | 1996-04-09 | W. L. Gore & Associates, Inc. | Electromagnetic interfernce shielding filter |
US5462586A (en) * | 1993-09-08 | 1995-10-31 | Japan Gore-Tex, Inc. | Oil-and water repellent gas-permeable filter |
US6029447A (en) * | 1995-02-21 | 2000-02-29 | Stojic; Steven M. | Spring brake actuator with filtered vent openings |
US5786058A (en) * | 1995-04-03 | 1998-07-28 | Minnesota Mining & Mfg | Thermally bonded viral barrier composite |
WO1997002994A1 (en) * | 1995-07-11 | 1997-01-30 | W.L. Gore & Associates, Inc. | Venting system for high-viscosity-liquid containers |
US5899238A (en) * | 1995-08-08 | 1999-05-04 | International Business Machines Corporation | Polyfluoroorgano composites and method for making |
US6074738A (en) * | 1996-06-25 | 2000-06-13 | Von Fragstein; Rainer | Flexible water and oil resistant composites |
US6261678B1 (en) | 1996-06-25 | 2001-07-17 | Von Fragstein Rainer | Flexible water and oil resistant composites |
US5981614A (en) * | 1996-09-13 | 1999-11-09 | Adiletta; Joseph G. | Hydrophobic-oleophobic fluoropolymer compositions |
US5902747A (en) * | 1996-10-24 | 1999-05-11 | Compact Membrane Systems, Inc. | Method of gasifying or degasifying a liquid containing cells |
US5876604A (en) * | 1996-10-24 | 1999-03-02 | Compact Membrane Systems, Inc | Method of gasifying or degasifying a liquid |
WO1998017362A1 (en) * | 1996-10-24 | 1998-04-30 | Compact Membrane Systems, Incorporated | Method of gasifying or degasifying a liquid |
US5989698A (en) * | 1997-02-10 | 1999-11-23 | 3M Innovative Properties Company | Coated porous materials |
US6486291B2 (en) | 1997-02-10 | 2002-11-26 | Innovative Properties Company | Coated porous materials |
US5914154A (en) * | 1997-05-30 | 1999-06-22 | Compact Membrane Systems, Inc. | Non-porous gas permeable membrane |
US5960777A (en) * | 1998-02-20 | 1999-10-05 | Compact Membrane Systems, Inc. | Combustion engine air supply system |
US6036735A (en) * | 1998-03-17 | 2000-03-14 | Jps Converter And Industrial Fabrics Corporation | Finish for glass fiber fabric |
US6582113B2 (en) * | 1998-05-14 | 2003-06-24 | Donaldson Company, Inc. | Oleophobic laminated articles, assemblies of use, and methods |
US6196708B1 (en) * | 1998-05-14 | 2001-03-06 | Donaldson Company, Inc. | Oleophobic laminated articles, assemblies of use, and methods |
US6558743B1 (en) | 1998-10-27 | 2003-05-06 | E. I. Du Pont De Nemours And Company | In situ fluoropolymer polymerization into porous substrates |
US6916549B2 (en) | 1998-10-27 | 2005-07-12 | E. I. Du Pont De Nemours And Company | In situ fluoropolymer polymerization into porous substrates |
US6770202B1 (en) | 1999-04-14 | 2004-08-03 | Pall Corporation | Porous membrane |
JP2002540928A (en) * | 1999-04-14 | 2002-12-03 | ポール・コーポレーション | Porous membrane |
WO2000061267A1 (en) * | 1999-04-14 | 2000-10-19 | Pall Corporation | Porous membrane |
US6849185B1 (en) | 1999-05-14 | 2005-02-01 | Pall Corp | Charged membrane |
US20060151374A1 (en) * | 1999-05-14 | 2006-07-13 | Pall Corporation | Charged membrane |
US7189322B2 (en) | 1999-05-14 | 2007-03-13 | Pall Corporation | Charged membrane |
WO2000072941A1 (en) * | 1999-06-01 | 2000-12-07 | Usf Filtration And Separations Group Inc. | Oleophobic filter materials for filter venting applications |
US20020139095A1 (en) * | 1999-06-01 | 2002-10-03 | I-Fan Wang | Oleophobic filter materials for filter venting applications |
US6355081B1 (en) | 1999-06-01 | 2002-03-12 | Usf Filtration And Separations Group, Inc. | Oleophobic filter materials for filter venting applications |
US6221247B1 (en) * | 1999-06-03 | 2001-04-24 | Cms Technology Holdings, Inc. | Dioxole coated membrane module for ultrafiltration or microfiltration of aqueous suspensions |
US6378414B1 (en) | 1999-06-28 | 2002-04-30 | Tse Brakes, Inc. | Removable filter cap for spring brake actuator |
US6512834B1 (en) | 1999-07-07 | 2003-01-28 | Gore Enterprise Holdings, Inc. | Acoustic protective cover assembly |
US6677033B2 (en) | 1999-09-30 | 2004-01-13 | E. I. Du Pont De Nemours And Company | In situ fluoropolymer polymerization into porous substrates |
US6306989B1 (en) * | 1999-09-30 | 2001-10-23 | E. I. Du Pont De Nemours And Company | Situ fluoropolymer polymerization into porous substrates |
US6389954B1 (en) | 1999-11-19 | 2002-05-21 | Tse Brakes, Inc. | Removable filter plug for spring brake actuator |
US6923846B2 (en) | 2000-06-13 | 2005-08-02 | L' Air Liquide—Societe Anonyme à Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude | Method of preparing composite gas separation membranes from perfluoropolymers |
US6540813B2 (en) | 2000-06-13 | 2003-04-01 | Praxair Technology, Inc. | Method of preparing composite gas separation membranes from perfluoropolymers |
US6579342B2 (en) | 2001-02-07 | 2003-06-17 | Pall Corporation | Oleophobic membrane materials by oligomer polymerization for filter venting applications |
US6709493B2 (en) | 2001-03-26 | 2004-03-23 | Gore Enterprise Holdings, Inc. | Device for reducing the presence of moisture within an enclosure containing a heat source |
EP1277504A3 (en) * | 2001-07-16 | 2003-03-19 | Systec Inc. | Film degassing system |
EP1277504A2 (en) * | 2001-07-16 | 2003-01-22 | Systec Inc. | Film degassing system |
US20030176516A1 (en) * | 2002-03-15 | 2003-09-18 | Greene, Tweed Of Delaware, Inc. | Cellular perfluoroelastomeric compositions, sealing members, methods of making the same and cellular materials for medical applications |
US6884375B2 (en) | 2002-04-12 | 2005-04-26 | Pall Corporation | Hydrophobic membrane materials for filter venting applications |
US20040145073A1 (en) * | 2002-04-12 | 2004-07-29 | I-Fan Wang | Hydrophobic membrane materials for filter venting applications |
US20050173266A1 (en) * | 2002-08-09 | 2005-08-11 | Vivek Agarwal | High temperature oleophobic materials |
US20060014010A1 (en) * | 2002-09-20 | 2006-01-19 | Bha Technologies, Inc. | Composite membrane having oleophobic properties |
US7407703B2 (en) | 2002-09-20 | 2008-08-05 | Bha Group, Inc. | Composite membrane having oleophobic properties |
US7771818B2 (en) | 2002-09-20 | 2010-08-10 | Bha Group, Inc. | Treatment of porous article |
US6932187B2 (en) | 2003-10-14 | 2005-08-23 | Gore Enterprise Holdings, Inc. | Protective acoustic cover assembly |
EP2741522A1 (en) | 2003-10-14 | 2014-06-11 | Gore Enterprise Holdings, Inc. | Protective cover assembly |
US20050077102A1 (en) * | 2003-10-14 | 2005-04-14 | Banter Chad A. | Protective acoustic cover assembly |
US20050120882A1 (en) * | 2003-11-05 | 2005-06-09 | Yuri Gerner | Axial transfer line degassing |
US7144443B2 (en) | 2003-11-05 | 2006-12-05 | Systec, Llc | Axial transfer line degassing |
US20070095204A1 (en) * | 2003-11-05 | 2007-05-03 | Yuri Gerner | Axial transfer line degassing |
US7713331B2 (en) | 2003-11-05 | 2010-05-11 | Rheodyne, Llc | Axial transfer line degassing |
US20110112629A1 (en) * | 2003-12-12 | 2011-05-12 | C. R. Bard, Inc. | Implantable medical devices with fluorinated polymer coatings, and methods of coating thereof |
US7892280B2 (en) | 2003-12-12 | 2011-02-22 | C. R. Bard, Inc. | Implantable medical devices with fluorinated polymer coatings, and methods of coating thereof |
US20050131527A1 (en) * | 2003-12-12 | 2005-06-16 | Pathak Chandrashekhar P. | Implantable medical devices with fluorinated polymer coatings, and methods of coating thereof |
US20090062903A1 (en) * | 2003-12-12 | 2009-03-05 | C. R. Bard, Inc. | Implantable medical devices with fluorinated polymer coatings, and methods of coating thereof |
US7476246B2 (en) * | 2003-12-12 | 2009-01-13 | C. R. Bard, Inc. | Implantable medical devices with fluorinated polymer coatings, and methods of coating thereof |
US8070859B2 (en) * | 2004-02-25 | 2011-12-06 | Membrane Technology And Research, Inc. | Method for producing a non-porous membrane |
US20050184006A1 (en) * | 2004-02-25 | 2005-08-25 | Zidu Ma | Method for producing a non-porous membrane |
US7284844B2 (en) * | 2004-07-30 | 2007-10-23 | Hewlett-Packard Development Comapny, L.P. | Air-driven delivery assembly |
US20060023038A1 (en) * | 2004-07-30 | 2006-02-02 | Seu Preston D | Air-driven delivery assembly |
US8506815B2 (en) * | 2006-10-27 | 2013-08-13 | Cms Technologies Holdings Inc. | Removal of water from fluids |
US20080099400A1 (en) * | 2006-10-27 | 2008-05-01 | Cms Technologies Holdings Inc. | Removal of Water and Methanol from Fluids |
US8293112B2 (en) | 2006-10-27 | 2012-10-23 | Cms Technologies Holdings, Inc. | Removal of water and methanol from fluids |
US20120283489A1 (en) * | 2006-10-27 | 2012-11-08 | Cms Technologies Holdings Inc. | Removal of water from fluids |
US7927405B2 (en) | 2007-04-23 | 2011-04-19 | Gore Enterprise Holdings, Inc | Porous composite article |
US20080257153A1 (en) * | 2007-04-23 | 2008-10-23 | Harp Gary P | Patterned Porous Venting Materials |
US20080257155A1 (en) * | 2007-04-23 | 2008-10-23 | Bacino John E | Porous Composite Article |
US8858681B2 (en) | 2007-04-23 | 2014-10-14 | W. L. Gore & Associates, Inc. | Patterned porous venting materials |
US8075669B2 (en) | 2007-04-23 | 2011-12-13 | Gore Enterprise Holdings, Inc. | Composite material |
US20100272941A1 (en) * | 2007-11-15 | 2010-10-28 | Entek Membranes Llc | Durable water- and oil- resistant, breathable microporous membrane |
US20090268475A1 (en) * | 2008-04-24 | 2009-10-29 | Earl Ball | Ventilation system for lamp enclosures |
EP2679515A1 (en) | 2008-12-31 | 2014-01-01 | W.L. Gore & Associates GmbH | Venting device |
US20120034118A1 (en) * | 2009-03-06 | 2012-02-09 | Haruo Nomi | Fluorinated Elastic Tube |
US8118910B2 (en) * | 2009-03-23 | 2012-02-21 | General Electric Company | Layered filtration membrane and methods of making same |
US20100236410A1 (en) * | 2009-03-23 | 2010-09-23 | General Electric Company | Layered filtration membrane and methods of making same |
US8157048B2 (en) | 2009-04-22 | 2012-04-17 | Gore Enterprise Holdings, Inc. | Splash proof acoustically resistive color assembly |
US20100270102A1 (en) * | 2009-04-22 | 2010-10-28 | Chad Banter | Splash Proof Acoustically Resistive Color Assembly |
US20110039468A1 (en) * | 2009-08-12 | 2011-02-17 | Baldwin Jr Alfred Frank | Protective apparel having breathable film layer |
US20130022648A1 (en) * | 2009-11-25 | 2013-01-24 | Healionics Corporation | Granules of porous biocompatible materials |
US8927022B2 (en) * | 2009-11-25 | 2015-01-06 | Healionics Corporation | Granules of porous biocompatible materials |
US8968063B2 (en) | 2010-05-13 | 2015-03-03 | W. L. Gore & Associates, Inc. | Vent installation method |
WO2011146344A1 (en) | 2010-05-17 | 2011-11-24 | Gore Enterprise Holdings, Inc. | Improved ear fitting |
US8462973B2 (en) | 2010-05-17 | 2013-06-11 | W.L. Gore & Associates, Inc. | Ear fitting |
US9855530B2 (en) | 2010-06-16 | 2018-01-02 | Nitto Denko Corporation | Water-proof air-permeable filter and use of the same |
US20150174517A1 (en) * | 2010-06-16 | 2015-06-25 | Nitto Denko Corporation | Water-proof air-permeable filter and use of the same |
US9636616B2 (en) * | 2010-06-16 | 2017-05-02 | Nitto Denko Corporation | Water-proof air-permeable filter and use of the same |
US8808848B2 (en) | 2010-09-10 | 2014-08-19 | W. L. Gore & Associates, Inc. | Porous article |
WO2012033804A1 (en) | 2010-09-10 | 2012-03-15 | Gore Enterprise Holdings, Inc. | Porous article with fused thermoplastic particles |
US9656186B2 (en) | 2011-09-12 | 2017-05-23 | IDEX Health and Science, LLC | Fluid degassing apparatus |
US9044712B2 (en) | 2011-09-12 | 2015-06-02 | Idex Health & Science, Llc | Supersaturated fluid degassing |
US20150203371A1 (en) * | 2012-10-03 | 2015-07-23 | Eni Spa | Liquid separation device |
US10865127B2 (en) * | 2012-10-03 | 2020-12-15 | Massachusetts Institute Of Technology | Liquid separation device comprising a metallic mesh with a hydrophobic polymer coating |
US8939252B2 (en) | 2012-11-11 | 2015-01-27 | David Sanborn | Protective material for acoustic transmission |
WO2017176989A1 (en) | 2016-04-06 | 2017-10-12 | W. L. Gore & Associates, Inc. | Pressure equalizing construction for nonporous acoustic membrane |
DE112017001923T5 (en) | 2016-04-06 | 2018-12-20 | W.L. Gore & Associates, Inc. | Pressure compensation assembly for non-porous acoustic membrane |
WO2018020987A1 (en) | 2016-07-27 | 2018-02-01 | W. L. Gore & Associates, Co., Ltd. | Waterproof sound-transmissive cover, waterproof sound-transmissive cover member and acoustic device |
DE112017003755T5 (en) | 2016-07-27 | 2019-04-18 | W.L. Gore & Associates, Co., Ltd. | Waterproof soundproof cover, waterproof soundproof cover and acoustic device |
DE112017003755B4 (en) | 2016-07-27 | 2024-03-21 | W.L. Gore & Associates, Co., Ltd. | Waterproof sound-permeable cover, waterproof sound-permeable cover element and acoustic device |
DE112016007219T5 (en) | 2016-09-14 | 2019-06-06 | W.L. Gore & Associates (Shenzhen) Co., Ltd. | Arrangement for protecting an acoustic device |
US20190365045A1 (en) * | 2017-02-23 | 2019-12-05 | W.L. Gore & Associates Gmbh | Layered product with functional membrane, footwear comprising such layered product, and manufacturing method |
US10908117B2 (en) | 2018-01-22 | 2021-02-02 | InSyte Systems, Inc. | Low impedance sensor for low density materials |
US11054383B2 (en) * | 2018-01-22 | 2021-07-06 | InSyte Systems, Inc. | Chip-scale sensing device for low density material |
Also Published As
Publication number | Publication date |
---|---|
CA2093518C (en) | 1996-07-02 |
CA2093518A1 (en) | 1992-06-04 |
WO1992009353A1 (en) | 1992-06-11 |
JP3390004B2 (en) | 2003-03-24 |
AU643860B2 (en) | 1993-11-25 |
EP0561875B1 (en) | 1995-03-01 |
AU9073291A (en) | 1992-06-25 |
DE69107861T2 (en) | 1995-07-06 |
JPH06505914A (en) | 1994-07-07 |
CN1030283C (en) | 1995-11-22 |
EP0561875A1 (en) | 1993-09-29 |
DE69107861D1 (en) | 1995-04-06 |
CN1063117A (en) | 1992-07-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5116650A (en) | Dioxole/tfe copolymer composites | |
US5342434A (en) | Gas permeable coated porous membranes | |
KR101480926B1 (en) | Porous article with fused thermoplastic particles | |
KR101049212B1 (en) | Porous ptfe materials and articles produced therefrom | |
US6582113B2 (en) | Oleophobic laminated articles, assemblies of use, and methods | |
CA2183345C (en) | Fabric laminates | |
JP4598524B2 (en) | Oleophobic material for high temperature | |
US4613544A (en) | Waterproof, moisture-vapor permeable sheet material and method of making the same | |
CA1159349A (en) | Breathable laminate | |
EP0641594B1 (en) | An oil- and water-repellent gas-permeable filter | |
CA2150466C (en) | Gas permeable materials | |
MXPA02006108A (en) | Nonwoven webs having liquid impermeability. | |
Phromphen | The permeation and moisture transmission properties of a thermosensitive membrane barrier for chemical protective clothing | |
KR20050061449A (en) | High temperature oleophobic materials |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: W. L. GORE & ASSOCIATES, INC., 555 PAPER MILL ROAD Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:BOWSER, JOHN;REEL/FRAME:005530/0149 Effective date: 19901203 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
FEPP | Fee payment procedure |
Free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
FPAY | Fee payment |
Year of fee payment: 4 |
|
FPAY | Fee payment |
Year of fee payment: 8 |
|
FPAY | Fee payment |
Year of fee payment: 12 |
|
AS | Assignment |
Owner name: GORE ENTERPRISE HOLDINGS, INC., DELAWARE Free format text: CORRECTIVE ACTION TO RECORD REMAINING 30 PATENTS OMITTED FROM ORIGINAL RECORDATION REEL/FRAME 6374/0518;ASSIGNOR:W. L. GORE & ASSOCIATES, INC.;REEL/FRAME:022742/0988 Effective date: 19921221 |
|
AS | Assignment |
Owner name: W. L. GORE & ASSOCIATES, INC., DELAWARE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GORE ENTERPRISE HOLDINGS, INC.;REEL/FRAME:027906/0508 Effective date: 20120130 |